I really enjoyed reading this article. I always hated my history class back when I was in college but I always had fascination with the early civilizations. For me, Egyptians, Mesopotamians, Mayans & Chinese civilizations were so freaking SMART! I don't think old civilizations were stupid, like someone mentioned here. On the opposite. Look all the perfect architecture they built. Their agricultural innovations, their inventions, their hunting skills among so many other great knowledge. As an adult, I enjoy reading articles like yours. It's all new to me lol in a way. Not being from this country, literally, I dig it. And the author made it so accessible, easy to understand, kudos for that.